Multiplier for looms



(No Model.)

A. F. DU FAUR. MULTIPLIBR- FOR LOOMS.

No. 572,250. Patented new, 1896 'INVENTOR w g fa .2; Jam,

WITNESSES:

ATTORN EYS m: Norms 951225 co, moromwou msumaron, n, c.

UNITED STATES PATENT OFFICE.

ADOLF FABER DU F AUR, OF NEVARK, NEIV JERSEY, ASSIGNOR TO ROBERTATIIERTON, OF PATERSON, NE? JERSEY.

MULTIPLIER FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 572,250, dated December1, 1896.

Application filed August 5, 1896.

To all whom, it may concern:

Be it known that I, ADOLF FABER DU FAUR, a citizen of the United States,residing in Newark, county of Essex, and State of New J ersey, haveinvented certain new and useful Improvements in Multipliers for Loomsand I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification The object of mypresent invention is to provide a multiplier for box-looms, by means ofwhich certain picks can be repeated without the use of a long andcumbersome pate tern-chain, of simple, strong, and durable constructionand reliable in operation.

The invention consists in the improved multiplier, its actuating andcontrolling mechanism, and in the combination and arrangement of thevarious parts thereof, substantially as will be hereinafter more fullydescribed and finally embodied in the clauses of the claim.

In the accompanying drawings, Figure 1 is a side elevation of myimproved multiplier arranged on a portion of a loom-frame of ordinaryconstruction; Fig. 2, a rear elevation thereof, the pattern and theauxiliary chain being removed; Fig. 3, a detail view of thesprocket-wheel actuating and controlling mechanism; and Figs. 4 and 5detail views of the sprocket-wheels and of the pattern and auxiliarychains, respectively, carried thereby.

In said drawings, (4 represents a portion of a loom-frame, and a a abracket-frame secured thereto, which latter furnishes the bearings forthe shaft 0, which is arranged parallel to the main driving-shaft I),mounted in the loom-frame a. On the shaft 0 is securely mounted a sleevee, having integral therewith (or fixed thereon in any desired manner)the sprocketwheel c and ratchet-wheel e and also the wheel 6, by meansof which the shaft c may be rotated by hand. On

said shaft 0 is also loosely mounted a sleeve a having integraltherewith (or fixed thereon in any desired manner) the s procket-wheelSerial No. 601,694. (No model.)

e, the ratchet-wheel 0 and the hand-wheel 6 The ratchet-wheels 0 and owhich have their teeth. out in opposite directions, are arranged inclose proximity to each other and are separated by the sleeve 0 looselymounted on the shaft 0 and provided with the arms 0 and c otallyconnected, as at 0 to the arm 0 projecting from the ring or rim 0,surrounding the eccentric c, which latter is secured on the maindriving-shaft b. To the free end of the arm 0 is secured the pin 0', onwhich are arran ged-and on each side of the arm--the pawls c and 0adapted to engage the teeth of their respective ratchet-wheels 0 and o(See Fig. 3.) V

In the bracket-frame a, and above and parallel to the shaft 0, issecured the rod a", from which is adjustably suspended,by means of theset-screw a the forked bracket a serving as a guide for the levers a afulcrumed on the stub-shaft a which latter is secured in the projectingportion a of the bracket-frame a. Said levers are arranged above thesprocket-wheel e and are adapted to be operated by the balls or rolls ofthe pattern-chain 6 Fig. 4, as will be manifest.

On the rod a is loosely mounted the sleeve g, which is prevented fromlateral motion by the collars 9 secured to said rod. Integral with thesleeve g or secured thereto in any desired manner are the depending armsg and 9 carrying the horizontally-projecting .pins and adapted to en agethe pawls J g c c and 0 respectively, in a manner hereinaf terdescribed. The sleeve g and its depending arms 9' g are held inoperative position by means of the flat spring 9, secured with one endto the projecting portion a of the bracket-frame a and provided at itsother end with teeth engaging the notches Q23, arranged in lug 9 whichlatter projects from the sleeve 9. (See Fig. 3.) The spring g may bestrengthened by the pin 9 secured with one end substantially in thecenter of the spring and with its other end to the rod a", all asclearly shown in Fig. 2 of the drawings.

The pattern-chain e is carried by the The free end of the arm 0 is piv-1 IOO to and projecting from the bracket-frame a, while the auxiliarychain 6 is carried by the sprocket-wheel c and rests with its dependingportion on the slide or guide f, also secured to the bracket-frame a.

On one or more of the rods of the patternchairi e is arranged a ball 6in alinement with the depending arm g and adapted at certain intervalsto engage the said arm, as afterward described. The auxiliary chain 6 islikewise provided with balls e adapted at certain intervals to engagethe depending arm 9 In operation a continuous oscillating motion isimparted from the main driving-shaft through the eccentric c and arms 0and c to the arm 0, arranged on the sleeve 0 and carrying the pawls cand a". The pawl c is normally held out of engagement with theratchet-wheel o by means of the pin 9 and thus prevents rotation of thesleeve 8 and the sprocket-wheel (carrying the auxiliary chain 6connected therewith. The pawl 0 whenever the arm c is oscillated fromright to left, Fig. 3, moves the ratchet-Wheel 0 and thus thepattern-chain 6 The patternballs will thus come under and raise oroperate the respective levers a or a, thereby actuating the respectiveparts of the shuttlechanging mechanism to bring the required box inposition to throw its shuttle. The pattern-chain continues to revolveuntil one box is required for more than one pick, that is to say, one ofthe levers a a is to be lifted and held in its raised position until thenecessary picks or throws from the shuttle of the box, actuated fromsaid lever, have been accomplished. At the required moment the ball 6 ofthe pattern-chain comes in contact with and throws or swings thedepending arm'g, carrying the pin 9 outward until the said pin, afterengaging the pawl 0 has thrown the latter out of engagement with theratchet-wheel 0 Simultaneously the depending arm g carrying the pin g isthrown or swung inward, thus clearing the pawl c and allowing the latterto engage the teeth of the ratchet-wheel o The ratchetwheel 0 is thusrotated in a direction opposite to the direction of the ratchet-wheel 0and as it is in fixed connection with the sprocket-wheel c the auxiliarychain 6 9 is revolved or operated. Said auxiliary chain continues torevolve until the respective pick has been repeated the required numberof times. At that pick the ball e comes into contact with and throws orswings the depending arm g carrying the pin g, outward until the saidpin has thrown the pawl 0 out of engagement with the ratchet-wheel 0thus stopping the rotation of the latter. Simultaneously the dependingarm g, carrying the pin 9 is thrown inward, thus releasing the pawl cwhich latter again engages the teeth of the ratchet-wheel 0 and rotatesthe same. The depending arms g and g are held in their respectivepositions by the flat spring g, as heretofore described. It will thus beseen that when the ball e of auxiliary chain 6 engages the depending armg the said auxiliary chain is at rest, while the patternchain isrotated. On the other hand, when the ball 6 of pattern-chain e engagesthe depending arm g the said pattern-chain is stopped in rotation andthe auxiliary chain started in a manner heretofore described.

To remedy defective picks, the sprocketwheels 6 and (2 may be operatedby hand forward and backward by means of the wheels 6 and a,respectively, as will be manifest.

I do not intend to limit myself to the precise construction shown anddescribed, as various alterations can be made without changing the scopeof my invention; but

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination with the pattern-chain and the levers operatedthereby, of a shaft, a sprocket-wheel mounted on the shaft and carryingthe pattern-chain, a sprocket-wheel loosely mounted on said shaft, anauxiliary chain on said sprocket-wheel, a ratchet-wheel for each of saidsprocket-wheels, an oscillating arm loosely mounted on the shaft, twopawls fulcrumed on said oscillating arm and adapted to engage the teethof their respective ratchet-wheels, means-for oscillating said arm, andmeans for controlling the pawls in such a manner that when one pawl isbrought into engagement with the teeth of its ratchet wheel, the otherpawl is brought out of engagement, substantially as and for the purposesdescribed.

2. The combination with the pattern-chain and the levers operatedthereby, of a shaft, a sprocket-wheel on said shaft and carrying thepattern-chain-, a sprocket-wheel loosely mounted on said shaft, anauxiliarychain on said sprocket-wheel, a ratchet-wheel for each of saidsprocket-wheels, an oscillating arm loosely mounted on the shaft, twopawls fulcrumed on said oscillating arm and adapted to engage the teethof their respective ratchetwheels, means for oscillating the arm, a rodarranged above the shaft and parallel thereto, two depending connectedarms fulcrumed on said rod, a pin projecting from each of said arms andadapted to engage its respective pawl, and means for operating saiddepending arms, all said parts substantially as and for the purposesdescribed.

3. The combination with the pattern-chain and the levers operatedthereby, of a shaft, a sprocket-wheel on said shaft and carrying thepattern-chain, a sprocket-wheel loosely mounted on said shaft, anauxiliary chainon said sprocket-wheel, a ratchet-wheel for each of saidsprocketavheels, an oscillating arm loosely mounted on the shaft, twopawls fulcrumed on said oscillating arm and adapted to engage the teethof their respective ratchetwheels, means for oscillating the arm, a rodarranged above the shaft and parallel thereto, two depending connectedarms fulcrumed on said rod, a pin projecting from each of said arms andadapted to engage its respective pawl, an outwardly-proj ectin g ballcarried by the pattern-chain and adapted to engage one of said dependingarms, and an outwardlyprojecting ball carried by the auxiliary chain andadapted to engage the other depending arm, all said parts, substantiallyas and for the purposes described.

4. The combination with the pattern-chain and the levers operatedthereby, of a shaft,

a sprocket-wheel on said shaft and carrying said pattern-chain, asprocket-wheel loosely mounted on said shaft, an auxiliary chain on saidsprocket-wheel, a ratchet-wheel for each of said sprocket-wheels, anoscillating arm loosely mounted on the shaft, two pawls fulcrumed onsaid oscillating arm and adapted to engage the teeth of their respectiveratchetwheels, means for oscillating the arm, a rod arranged above theshaft and parallel thereto, a sleeve loosely arranged on said rod, twoarms depending from said sleeve, a pin carried by each of said dependingarms and adapted to engage its respective pawl, means carried by thepattern-chain to operate one of said arms, means carried by theauxiliary chain to operate the other arm, and means for holding saidarms in operative position, all said parts,substantially as and for thepurposes described.

5. The combination with a continuouslyrevolving shaft, and a shaftparallel therewith, of an eccentric on the revolving shaft, an armcarried by said eccentric, an oscillating arm loosely mounted on theparallel shaft and pivotally connected with the arm of the eccentric, asprocket-wheel mounted on the parallel shaft, the pattern chain on saidsprocket-wheel, a series of fulcrumed levers operated by saidpattern-chain, a sprocketwheel loosely mounted on the parallel shaft, anauxiliary chain carried by said sprocketwheel, a ratchet-wheel for eachof said sprocket-wheels, two pawls fulcrumed on the oscillating arm andadapted to engage the teeth of their respective ratchet-wheels, andmeans controlled bythe pattern-chain and the auxiliary chainrespectively to bring the pawls into and out of engagement with theteeth of said ratchet-Wheels, substantially as and for the purposesdescribed.

6. The combination with a continuouslyrevolving shaft and a shaftparallel therewith, of an eccentric on the revolving shaft, an armcarried by said eccentric, an oscillating arm loosely mounted on theparallel shaft and pivotally connected with the arm of the eccentric, asprocket-wheel on the parallel shaft, a pattern-chain carried thereby, aseries of fulcrumed levers operated by said pattern-chain, asprocket-wheel loosely mounted on the parallel shaft, an auxiliary chainon said sprocket wheel, a ratchet wheel connected with the pattern chaincarrying sprocket-wheel, a ratchet-wheel, having its teeth out inopposite direction, connected with the auXiliary-chain-carryingsprocket- Wheel, a pawl for each of said ratchet-wheels fulcrumed on theoscillating arm, a rod above the parallel shaft, two depending connectedarms fulcrumed on said rod, a pin carried by each of said depending armsand adapted to engage the pawls, and means carried by the pattern-chainfor operating one of said depending arms, and means carried by theauxiliary chain for operating the other depending arm, all said parts,substantially as and for the purposes described.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of July, 1896.v ADOLF FABER DU FAUR. \Vitnesses:

ALFRED GARTNER, WM. D. BELL.

